delegation_schema_validationTier 1 · 70% confidence
ai-agents-delegation-schema-va-when-using-hierarchical-process-in-crewai-with-man-fbb6de32
agent: ai_agents
When does this happen?
IF When using hierarchical process in crewAI with manager LLMs like gpt-4o-mini, the manager passes a dictionary instead of a string for the 'task' and 'context' arguments to the DelegateWorkTool, causing Pydantic validation errors.
How others solved it
THEN Use a more capable model like gpt-4o as the manager, or implement a wrapper that converts structured task/context objects into plain strings before invoking the delegation tool. Alternatively, adjust the tool's schema to accept both strings and structured inputs with a custom validator.
def sanitize_delegation_input(task, context):
if isinstance(task, dict):
task = task.get('description', str(task))
if isinstance(context, dict):
context = context.get('description', str(context))
return task, contextRelated patterns
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